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Mariana Batha Alonso, Professora Adjunta do Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro (UFRJ)

Scientists find antidepressant in the brains of sharks off the coast of Rio de Janeiro

The hammerhead shark is one of the most ancient marine species on the planet, and it is very common along the Brazilian coast. Martin Prochazkacz/Shutterstock

Sertraline is one of the most widely prescribed antidepressants in the world. Global sertraline sales are expected to keep growing, projected to expand from an estimated US$1.94 billion in 2025 to approximately US$3.13 billion by 2032.

In Brazil, a national survey indicates that 10.2% of Brazilians were diagnosed with depression, and it is estimated that 4% used antidepressants.

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